City's 3-1 win over Manchester United at Etihad Stadium on Sunday means the 27-year-old is now on the longest unbeaten run in all competitions of any Premier League player past or present.
"It is difficult to understand what we have done in recent years without him. It would've been difficult," City boss Pep Guardiola told the club's website last month.
The run surpasses that of former Chelsea defender Ricardo Carvalho (58 games), with Rodri's last loss in a City shirt coming against Tottenham in February 2023 - although it does include City's defeat on penalties by Arsenal in the Community Shield.
In that time City have won the Premier League, Champions League and FA Cup along with the Uefa Super Cup and the Club World Cup, while Rodri was also part of the Spain team that won the Nations League.
The holding midfielder signed from Atletico Madrid in 2019 for £62.5m in the hope that he would eventually step into the boots of former captain Fernandinho.
Like his predecessor, Rodri's role at City is one that tends to fly under the radar, with the likes of Erling Haaland and Kevin de Bruyne taking the headlines. But according to players, pundits and his manager along with the stats, his significance in City's exploits in recent years cannot be overstated.
Pep Guardiola says Rodri is "unbelievable" and "the best midfield player, currently, in the world by far".
A humble guy with no social media who studied for a business degree while also assisting City to their fifth Premier League title in 2021 - his second with the club - Rodri does not often receive the plaudits.
"He's the one who allows your De Bruyne's, Phil Foden's and Bernardo Silva's to do what they do because he's so good," said former City forward Paul Dickov on BBC Radio 5 Live.
Guardiola said the holding midfielder should "never, ever be in the highlights" and "do the job he has to do".
"The highlights have to belong to other people. The holding midfielder has to think for the rest of the team and do not expect the recognition. But internally? All team-mates and staff, they all know how important and decisive he is. Massively important for us," the City boss added.
But it is the compliments he receives from his peers which provide the bigger picture.
"It is just a joy to share a football pitch with him," said Luton captain Tom Lockyer on BBC Radio 5 Live.